Landslides

Q.

What is a landslide? What causes landslide?

Q. What are landslides? Explain the causes of landslides.

Q. What precautions are taken to reduce the effects of landslides?

1. Not constructing houses and buildings in landslide-prone areas.
2. Building walls along the slopes of hills to block debris.
3. Trees on the slopes are cut down to allow free flowing soil.
4. Trees are planted along slopes to form natural barriers.

Q. Human activities like and also cause landslides.

1. deforestation
2. mining
3. earthquakes
4. heavy rainfall

Q. Which of the following does not cause a landslide?

1. An earthquake
2. Heavy rainfall
3. Vibration from heavy machinery
4. Planting trees

Q. Landslides generally occur in the plains.

1. True
2. False

Q. Select the possible causes of a landslide.

1. Earthquake
2. Low Tide
3. Heavy Rainfall
4. Air Pollution
5. Deforestation
6. Mining
7. Heavy Machinery
8. Afforestation

Q. Select the possible causes of a landslide.

1. Earthquake
2. Low Tide
3. Heavy Rainfall
4. Air Pollution
5. Deforestation
6. Mining
7. Heavy Machinery
8. Afforestation

Q. Read the following sentences and choose the correct option that best describes these sentences.

1. Public utility pipes should be placed underground so that they are safe from landslides.
2. Tall walls can be built along hill slopes to block landslides to some extent, thus reducing resulting damage.

1. Sentence 1 is correct and sentence 2 is incorrect.
2. Both the sentences are incorrect.
3. Both the sentences are correct.
4. Sentence 1 is incorrect and sentence 2 is correct.

Q. Which of the following precautions are to be taken with regard to landslides?

1. Frequent hill cutting to make space for roads.
2. Water pipes and electric lines can be fitted underground.
3. Walls may be built around the slopes of hills prone to landslides.
4. Large scale deforestation in hilly areas.

Q. Assertion [A]: Landslides are naturally caused disasters.

Reason [R]: Activities such as mining and deforestation can cause landslides.

1. [A] and [R] are true and [R] is the correct justification for [A].
2. [A] is true but [R] is false.
3. [A] is false and [R] is true.
4. [A] and [R] are false.